How can the use of div classes and IDs in HTML be optimized to improve code readability and maintainability?

To optimize the use of div classes and IDs in HTML for improved code readability and maintainability, it is recommended to use meaningful and descriptive names for classes and IDs. This will make it easier for developers to understand the purpose of each element and style them accordingly. Additionally, avoid using inline styles and instead utilize external CSS files to separate styling from the HTML structure. ```html <!DOCTYPE html> <html> <head> <link rel="stylesheet" type="text/css" href="styles.css"> </head> <body> <div class="header"> <h1>Welcome to our website</h1> </div> <div id="main-content"> <p>This is the main content of the page.</p> </div> <div class="footer"> <p>&copy; 2021 Company Name</p> </div> </body> </html> ```